Abstract: The Ningdong coalfield contains rich coal resources and is an important part of the large Ningdong coal base. A multi-proxy study was conducted on the coal petrology, coal quality and harmful element to explore clean utilization method from coal seams 3 and 5 of Lower Permian Shanxi Formation and coal seams 8 and 9 of Upper Carboniferous-Lower Permian Taiyuan Formation in Hengcheng mine of Ningdong coalfield, according to the evaluation index systems of coking coal, direct liquefaction coal and gasification coal. The coal type of coal seams 3, 5, 8 and 9 is mainly brown coal, with the highest content of vitrinite and the second content of inertinite in the macerals. The coal has the characteristics of low‒medium ash content, medium‒high volatile content, ultra-low‒low sulfur or high sulfur content, weakly caking, relatively high softening temperature ash, medium flow temperature ash, various thermal stability, medium grindability‒easy grindability, ultra-low‒low chlorine, low‒medium fluorine, ultra-low-low arsenic. The raw coals of coal seams 3, 5, 8 and 9 in Hengcheng mine of Ningdong coalfield are not suitable for coking coal and direct liquefaction coal, but meet the standard for gasification coal. Among them, the raw coal of coal seams 3, 5 and 8 meets the standard for category II dry coal powder fluidized bed gasification coal, and the raw coal of coal seam 9 meets the standard for category I dry coal powder fluidized bed gasification coal. Therefore, coal gasification is one of the effective ways of clean and efficient utilization of coal resources in Hengcheng mine of Ningdong coalfield.